BARSTOW, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(040519) BARSTOW
From Year=1913 To Year=1980
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	193	286	454	647	909	1143	1384	1317	1082	781	392	198	8786
40 S	193	479	933	1579	2488	3631	5015	6333	7415	8196	8588	8786	8786
45 M	85	158	303	497	754	993	1229	1162	932	626	251	88	7078
45 S	85	243	545	1042	1796	2789	4018	5181	6113	6739	6990	7078	7078
50 M	25	64	170	350	599	843	1074	1007	782	473	132	26	5547
50 S	25	90	259	610	1209	2052	3126	4133	4915	5388	5520	5547	5547
55 M	4	17	75	218	446	693	919	852	632	326	52	5	4239
55 S	4	22	96	314	760	1452	2371	3224	3856	4182	4234	4239	4239
60 M	0	3	22	111	300	543	764	697	483	193	14	1	3130
60 S	0	3	25	136	436	979	1743	2440	2923	3115	3129	3130	3130

Corn Growing Degree Days
50 M	158	210	309	416	565	691	820	787	659	505	289	169	5578
50 S	158	367	677	1093	1658	2349	3169	3956	4614	5120	5408	5578	5578

M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Jul 28, 2006
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu